2
votes
3answers
113 views

Bass guitar amp power socket issues

I have a rather unusual question. I have a Fender Affinity Jazz Bass starter kit and it comes with a 15W amp - "Rumble 15 Bass Combo Amp". I also have a cat in the house, and every time I don't cover ...
15
votes
3answers
718 views

When should I be concerned about calibrating the bias of vacuum tubes in an amplifier?

I think it would be useful to discuss the concept of bias as it pertains to guitar amplifiers. I have read some articles saying that you should always rebias your amplifier when you change the power ...
13
votes
2answers
12k views

How do I know when it's time to change a tube on my amplifier?

I think this would be a wonderfully instructive question to people who are new to tube amplifiers. In short, how do I know that it's time to change a tube, and what's a good strategy for figuring out ...